Hello dear, having 100 marks in jee mains is not a good marks but as you belongs to  scheduled caste then this marks is enough. You will definitely get seat in  metallurgy and Chemical engineering branch in NITs.

Hope this information fulfils your query .Good luck 

Hello Bharath.

Well I can assist u in this. Seen u can get any of the non core branch in the NITs except the top notch with the above mentioned marks in the JEE MAINS exam under SC category.

I have provideu above information by considering the previous years trends of the result of JEE MAINS exam. Wait until NTA announces the final confirmation.

Hope u got ur point. Ask for any other query.

Good luck